Customer Rating : 
List Price : $399.00 Price : $397.95
List Price : $399.00 Price : $397.95
Product Description
Features
- Sigma’s own unique technology OS (Optical Stabilizer) function
The 18-200mm f3.5-6.3 OS is equipped with Sigma’s own unique OS (Optical Stabilizer) technology. This system uses two sensors inside the lens to detect vertical and horizontal movement of the camera by moving an optical image stabilizing lens group, to effectively compensate for camera shake. It also automatically detects panning movement of the camera and compensate for camera shake when shooting moving subjects such as motor sports. - Excellent Optical Performance
A Special Low Dispersion (SLD) lens and three aspherical glass elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range. The super multi-layer lens coating reduces flare and ghosting while producing the best color balance. - Enables close-up photography
This lens has a minimum focusing distance of 45cm through entire zoom range with a maximum magnification of 1:3.9 making it very convenient for taking close-up pictures. - Inner focusing system
Because the front of the lens does not rotate, circular polarizing filters and a petal-type hood can easily be used. - Magnification scale
A magnification scale is displayed on the lens barrel, ensuring ease of use. - Zoom lock switch mechanism
A zoom lock switch mechanism is provided to prevent the lens from creeping due to its own weight.
Amazon.com Product Description
The Sigma 18-200mm high-zoom-ratio lens is designed exclusively for Canon digital SLR cameras and is capable of covering a wide range of focal lengths, from wide-angle to telephoto. Two Special Low Dispersion (SLD) glass elements and two hybrid aspherical lenses correct for all types of aberrations, letting Sigma house the extended-range super-zoom lens in a compact and lightweight body that measures 70mm in diameter and 78.1mm long and weighs a mere 14.3 ounces. The new lens coating, meanwhile, reduces flare and ghost--a common problem shared by many digital cameras--while also creating an optimum color balance. Other details include a minimum focusing distance of 45cm (17.7) at all focal lengths, a high zoom ratio of 11:1, and a maximum magnification of 1:4.4.
The lens design incorporates an inner focusing system that prevents the front of the lens from rotating, making it particularly suitable for using circular polarizing filters and petal-shaped lens hoods. In addition, the overall length of the lens never changes during focusing, making the lens convenient to handle and easy to use. Finally, the lens's zoom lock switch eliminates "zoom creep" during transport--a convenient addition when traveling. The lens, which includes a metal mount, is backed by a one-year warranty.
- 18-200mm high-zoom-ratio lens designed for Canon digital SLR cameras
- 2 Special Low Dispersion (SLD) glass elements and 2 hybrid aspherical lenses
- Lens coating reduces flare and ghost; 17.7-inch close focusing distance
- Inner focusing system is suitable for circular polarizing filters and lens hoods
- Measures 2.75 inches in diameter and 3.07 inches long; 1-year warranty
Sigma 18-200mm f/3.5-6.3 DC AF OS (Optical Stabilizer) Zoom Lens for Canon Digital SLR Cameras Reviews
| 336 of 340 people found the following review helpful:  Sigma got it right, By Baltic Books "Vic" (Portland, OR USA) - See all my reviews Amazon Verified Purchase This review is from: Sigma 18-200mm f/3.5-6.3 DC AF OS (Optical Stabilizer) Zoom Lens for Canon Digital SLR Cameras (Electronics) We've been using this Sigma AF 18-200 lens for a couple of months now. Recently we compared the Sigma with Canon's 28-135mm image stabilized lens on a Canon 30D. We shot side by side photographs at 28mm & 135 mm both, set to ISO 100 with camera in Program mode. Our lenses were set to autofocus with image stabilization on.The good news which I really didn't expect was to see both lenses produce images that were nearly identical-- I thought for sure Canon's optics would far surpass Sigma's. Color saturation, light exposure through the lens, and detail were indistinguishable. The autofocus worked equally well on both. Both weighed about the same and were about the same size. The Sigma has a 72mm diameter aperture which I liked (so does the Canon). Of course the Sigma is 18-200, and at this time Canon does not have a competing option in the same digital SLR lens class with image stabilization. The only aspect of the Sigma that differed significantly from Canon's... Read more 50 of 52 people found the following review helpful:  Comparing the Sigma to the New Canon 18-200mm IS Lens, By Amazon Verified Purchase This review is from: Sigma 18-200mm f/3.5-6.3 DC AF OS (Optical Stabilizer) Zoom Lens for Canon Digital SLR Cameras (Electronics) I've had the Sigma 18-200mm OS lens for several months and found it to give sharper images with my 40D than the Tamron 18-250mm (non-IS/OS) which it replaced. Then along comes the new Canon EF-S 18-200mm f/3.5-5.6 IS, their own superzoom "travel lens." I bought one to see how it compares to the Sigma. My tests show mixed results regarding image quality. With both lenses wide open the Sigma wins at the wide end from 18-24mm, especially away from the center, while the Canon wins at the 135-200mm long end, also especially away from the center. The Sigma is f6.3 wide open at 200mm while the Canon is f5.6. This is only a small difference, but it does give the Canon even more advantage at 200mm where shutter speed needs to be the highest.Both lenses auto-focus accurately (no front or back focus) although the Sigma is slower to lock focus in low light and is a little noisier in getting there. Their IS/OS are equally effective at about 3 stops of compensation. Build quality,... Read more 27 of 27 people found the following review helpful: Winner, By Tremelune (NYC) - See all my reviews Amazon Verified Purchase This review is from: Sigma 18-200mm f/3.5-6.3 DC AF OS (Optical Stabilizer) Zoom Lens for Canon Digital SLR Cameras (Electronics) This lens is phenomenal. It is the perfect walk-around lens. 28-300mm lenses don't compete, as I find the 18-28mm range to be far more useful than the 200-300mm range for APS-C sensor cameras like the Rebel and 40D. Sigma has an 18-250mm lens, but its lack of image stabilization is a deal-breaker. This lens isn't too heavy, isn't too large, and it zooms like a bastard. If I had to have one lens for an APS-C sensor camera, with cost as no object, this would be it. Second would be Canon's 10-22mm. I would pay big bucks for a faster version of this lens. |
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